We comment as follows.(1) Their claim is wrong, because no such derivation or explanation was presented in [1].(2) For , it can be easily seen that the iteration method (5) reduces to (4). Hence, (4) is the special case of (5).(3) On page 2 of [2], it is interesting to note that for , the claimed new formulation,
is not new and reduced to
which is the special case of relation (5).(4)Remark 1 (see [2]). Actually Li pointed out the special case of an already derived method due to Kang et al. [3].(5)Remark 2 (see [2]). The claim is wrong because in [3] the equation is different from the equation (7) in [2].(6)Remark 3 (see [2]). This argument is misleading because in [3] which is not equal to appeared in equation (8) of [2].(7)Remark 4 (see [2]). This statement is meaningless because the approach of Kang et al. [3] is different.

2. Conclusions

All the claims made by Li in [2] are incorrect. However, in order to obtain the variants and generalizations of the Newton-Raphson method, the approach and the performance of the variational iteration formulation can be seen in [4].

Acknowledgment

The authors are greatly thankful to Professor Naseer Shahzad for his valuable suggestions in order to improve this letter.